Soft iron (up to around 0.5mm), stainless steel (up to around 0.3mm), rubber (up to around 5mm), leather (up to around 3mm), Soft iron (up to around 0.5mm), stainless steel (up to around 0.3mm), rubber (up to around 5mm), leather (up to around 3mm), Mild steel (equivalent of up to 0.5mm), stainless steel (equivalent of up to 0.3mm), rubber (equivalent of up to 5mm), skin (equivalent of up to 3mm)

It is a very good product that it became out of print as it goes out of business. No matter how much substitute you give and give, I do not like the site. Is there no company somewhere making this product? It was simple, easy to grip and easy to use.